Pre-cast sectional concrete structure



Nov. 4, 1958 R LEVERT 2,858,693

PRE-CAST SECTIONAL CONCRETE STRUCTURE 3 Sheets-Sheet 1 Filed JuELy 6,1955 ATTORNEYS Nov. 4, 1958 R. c. LEVI-:RT PRE-CAST sECTToNAL CONCRETESTRUCTURE 5 Sheets-Sheet 2 Filed July e, 1955 Imlmmummmmm MWH..

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v NNI A ,United States Patent PRE-CAST sECTroNAL CONCRETE STRUCTURERaymond C. Levert, New Orleans, La., assignor to Crescent SwimmingPools, Inc., New Orleans, La.

Application July 6, 1955, Serial No. 520,224

2 Claims. (Cl. 72-13) The present invention relates to pre-castsectional concrete structures, and more particularly to such structuresthat are adapted to be formed into swimming pools and the like.

The primary object of the invention is to provide a precast sectionalconcrete structure which can be formed into a swimming pool at the sitefrom pre-formed sections.

Another object of the invention is to provide a device of the classdescribed above, in which means are provided for continuously clampingthe edges of the pre-cast sections together.

A further object of the invention is to provide a structure of the classdescribed in which the pre-cast concrete sections are transversely andlongitudinally reinforced to prevent breakage of the concrete.

A still further object of the invention is to provide a structure of theclass described which may be modified from a circular shape to anelongated pool having semicircular ends, by the addition of centralsections having parallel side edges.

Another object of the invention is to provide a swimming pool formedfrom pre-cast sectional concrete elements, which is further providedwith an anti-splash curbing formed from sectional blocks. v

Other objects and advantages will become apparent in the followingspecification when read in light of the attached drawings, in which: l

Figure 1 is a plan view of the invention, showing the sections formedinto a circular swimming pool.

Figure 2 is an enlarged transverse cross-section of the invention, takenalong the line 2 2 of Figure l, looking in the direction of the arrows.

Figure 3 is an enlarged fragmentary sectional view of one side of theswimming pool, taken along the line 3 3 of Figure 2, looking in thedirection of. thev arrows, with parts broken away.

Figure 4 is an enlarged transverse cross-section of the invention,takenalong the line 4 4 of Figure'3, looking in the direction of thearrows.

Figure 5 is a fragmentary exploded plan view of the connection betweenthe central slab and one of the side sections, with the edge portion ofthe central slab shown in section.

Figure 6 is an enlarged detail plan view of the connection between apair of adjacent sections, with the edge portion of the sections shownpartially in section.

Figure 7 is an enlarged transverse cross-section of the invention shownin exploded form and taken along the line 7 7 of Figure 6, looking inthe direction of the arrows.

Figure 8 is an enlarged detail cross-section of the curbing, taken alongline 8 8 of Figure 1, looking in the direction of the arrows, partlybroken away.

Figure 9 is a plan view similar to Figure 1, illustrating a modiiiedform of the invention.

Figure 10 is an enlarged detailed plan View of one of the side sectionsof the device illustrated in Figure 9,

2,858,693 Patented Nov. 4, 1958 "ice 2 with portions thereof shown insection for purposes of clarity. y

Figure 11 is an exploded enlarged transverse cross-section, taken alongthe line 1.1 11 of Figure 10.

Referring now to the drawings in detail, wherein like reference numeralsindicate like parts throughout the severaliigures, the reference numeral20 indicates', generally, a swimming pool comprising va circular slab 21having a central drain opening 22 extending downwardly therethroughandprovided with a reinforcing wire mesh 23. A series of bores 24 extendradially into the peripheral edge of the slab 2l equidistant between thetop and bottom faces thereof. The purpose of the bores `24 will be laterexplained.

A series of arcuate segments 25 are positioned with their inner edges 26in engagement with the peripheral edge 27 of the slab 21. The segments25 are formed arcuately both in a transverse and in a longitudinaldirection, with their upper portions 28 being wider than their lowerportions 29, so that the side edges 30 thereof will abut the side edges30 of the adjoining segments 25 throughout their length. A reinforcingnet, as best illustrated in Figure 3, consists of a series of rods 31extending from one side edge 30 of the segment 25 to the other side edge30 of the segment 25, and are there joined by welding or other suitablemeans to a short section of pipe 32 which is recessed within the segment25 a distance of approximately half the diameter of the pipe 32.

A central longitudinal connector reinforcing rod 33 extends from theupper end 28 of the segment 25 to the lower end 29 and has a portion 34extending outwardly from the end 29 of the segment 25. The extension 34o f the rod 33 is adapted to engage in the radial bore 24 in the slab21. This supports the lower end 29 of the segment 25. The pipe sections32 are alternated, as best illustrated in Figure 6, and are formed withthe spaces between the pipes 32 slightly longer than the pipes 32, sothat the pipe sections 32 of one segment 25 will engage between the pipesections 32 of another segment 25, the pipe sections 32 being spacedalternately from side to side on each individual slab 25. A connectorpin 35 is adapted to be inserted through each of the pipe sections 32 totightly secure one segment 25 to its next adjacent segment 25.

A curbing 36 is provided with a flat upper panel 37 having a dependingshoulder 38 formed on the under side thereof with a flange 39 alsoextending from the under side of the curbing 36 in spaced apart relationto the shoulder 38. The shoulder 38 and the flange 39 form therebetweena pocket 40 for the reception of the upper end 28 of the segment 25. Thepanel 37 extends inwardly beyond the ange 39 to form an overhang portion41. An arcuate gutter 42 extends upwardly and inwardly from the loweredge of the flange 39 in a position to be substantially covered by theoverhang portion 41 of the panel 37. The arcuate gutter 42 actsadditionally as a v finger hold to assist a bather in leaving theswimming pool 20.

In the modification illustrated in Figures 9, 10 and 11, thesemicircular end portions of the pool, generally indicated at 20',consist of segments 25 which are identical to the segments 25 of thepool 20. Curbing 36' identical to curbing 36 also surrounds thesemicircular end portions of the pool 20. A slab 21', formed withsemicircular end portions 43, has a central rectangular section withparallel edges 44, the length of the sides 44 being varied to vary thelength of the pool 20'. A series of sections 45 having parallel sideedges 46 are connected to the slab 21 and to the segments 25', in amanner to be described. The sections 45 are longitudinally arcuatelycurved and are provided With a reinforcing 31 formed in the same manneras the reinforcing 31 in they segments 25.` A central rod 33' isconnected by Welding or the like to each of the reinforcing rods 31' andextends beyond the inner end4 29 so as to extend into the slab 21 asshown at 34' in Figure 10. The edges of the sections45 are'providedwithV pipe sections 32 which are adapted to be interlocked to each otherin the samemanneri as the pipe sections 32 on the segments 25.

.The upper yedges 28 of the sections 45 are provided witha curbing 47which is formed similarly to the curbing 36, with the exception that theside edges of the curbingv 47 are parallel. Thus, it can be seen that bycasting the slab 21 in any desired length, the pool 20' canbe extendedby adding sections 45 on either side thereof 'until theV desired size isformed. The Slab 21' is providedr with a central drain opening 22' topermit the pool to be drained.

The individual segments 25 and 25 and the sections 45 are formed byWelding the rods 31 to a section Of pipe 32 extending'frorn the innerend 29 to the outer end` 28 `of the segment 25, and the reinforcing rod33 is welded to the central portion of each of the reinforcing rods 31,with the rod 33 extending beyond the lowermost portion 29 of the segment25. The reinforcing rods 31 for the next adjacent segment 25 are weldedto the pipe 32 with alternate pairs of the rods 31 connecting to thepipe 32 between alternate pairs of therods 31 in the rst segment 25.After the reinforcing framework is formed, the pipe 32 is cut insections, so that each .section of pipe is connected to a pair of therods 31 from one of the segments 25. The reinforcing framework is thenplaced in a mold and concrete is poured to form the segment 25. Theremoval of the material due to `the cutting of the pipe 32 into sectionsassures that the pipe sections .32 will be `shorter than the spacesbetween the pipe sections 32. Of course, it should be understood thatthe pipe .sections 32 will be supported in nal position during thecasting of the segment 25 to yassure that the finished segment willinterlock with any other segment 25 and with any lsection 45 when themodiiedpool 20 is being constructed.

In `the useand operation of the invention, a -pit or excavation isyformed in the earth and :the ,slab l21 or 21 as the -casevmay be ispositioned r centrally of the excavation., A dra-in pipe (not shown) isconnected to the drain opening 122 or 22' to permit the draining of 4thejpool 20 or .20V when desired. A series of segments 25,01 25' fare Vthentted to the .slab 21 or 21 with the extension 34 entering the bores 24in the edge `of the slab 2d 4or 21. In the case .of ,the modified pool,the

.sections 45v are likewise itted t0 ithe slab 21' Vto form -the side`.portions iof the pool 20. Connector pins 35 :are then inserted.through :the pipe sections 32 or 32 to .lock the individua-l portionsof the ,pool together. C urb- 'ing 36 or 36' `is then ypositioned atopythe .circular pornons .of .the pool ,207er 20' and ,curbing l47 ispositioned i atop ithe-straightsections 45 ofthe pool 20..

The fabutting `edges of the Vvarious segments V25 and 4 25', as well asthe abutting edges of the sections 45 and the edges pf the slab 2l er21,' which ahnt the ether portions of the pool, may each be coated witha mastic or other waterproong sealing material prior to the nal assemblyof the pool, to prevent the leakage of water from the pool.

Having thus described the preferred embodiments of the invention, itshould be understood that numerous structural modifications andalterations may be resorted to without departing from the scope of theappended claims.

What is claimed is:

1. A pre-cast sectional concrete structure comprising a generally athorizontal central slab having a substantially vertical encompassingperipheral edge surface provided with a plurality of spaced aparthorizontally extending sockets therein, a plurality of wall segmentspositioned side by side with each segment having a substantiallyvertical lower inner .edge surface engaging the peripheral edge surfaceof seid slab with .Seid segments each extending arcnately upwardly andoutwardly therefrom, said segments each having substantially verticalOpposite side edge surfaces spaced by said lower inner edge surfaces andengaging the side edge surfaces .of adjacent segments, `a metallicreinforcing nef .extending centrally through Cach of said segments, arod secured to said net and preieeting through the lower inner edgesurface of. each ef said segments and detechebly engaging a selected oneof said sockets, a plurality pf axially aligned pipe sections secured t9-Saidreinforeing net along each side edge .surface ef each .segment withsaid pipe sections spaced apart ,in .Offset relefien cn opposite sidesof each segment with the pipe sections of adjacent sides of `adjacent.segments interengeging, end means extending through said interengggingpipe seetiens te releasebly leek `said segments fegeiher- 2. Astrnet-pre as .claimed in -clp-.iin l wherein-seid slab is elongated,said peripheral edge supface cprnprising a pair of spaced parallel .sidesurfaces i. 'ned at Athe .0p- .pesite ends thereof hy a pair ofvsemi-erreiner `end snrfaces. seme et said segments engaging theparallel side surfaces and having the pppesite 4,side edge surfacesdiere .of parallel, other .of said :segments engaging :the semieirenlarend 4.surfaces and heving the opposite fsidetedge surfaces thereofoutwardly diver-,ging .from said slab, and said..seg.rnents in said sideby side pesitiens ldening with the slab an enclosure.

References `Cited in lthe f ile of :this patent UNITED STATES PATENTS

